Cartridge for 3D printing



FIG. 1 is a perspective view of cartridge for 3D printing showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings depict portions of the cartridge for 3D printing that form no part of the claimed design. 

CLAIM The ornamental design for a cartridge for 3D printing, as shown and described. 